Overview
Sonar provides extensive configuration options to customize your sale. These are configured in the Echo Founder Dashboard before your sale launches.Commitment Limits
Limits are enforced at the entity level, not the wallet level—so a participant can’t circumvent limits by using multiple wallets.| Parameter | Description |
|---|---|
| Minimum commitment | Smallest amount an entity can commit (e.g., $100) |
| Maximum commitment | Largest amount an entity can commit—use this as a whale cap to limit large participants |
See Purchase Permits for implementation details on how limits are enforced.
Price Bounds (for Auctions)
When running an English auction, you can set bounds on acceptable bid prices:| Parameter | Description |
|---|---|
| Minimum price (floor) | The auction starts at this price—no bids accepted below it |
| Maximum price (ceiling) | No bids accepted above this price |
Compliance Options
Geographic Restrictions
| Option | Description |
|---|---|
| Blocked jurisdictions | Countries where participation is not allowed (e.g., sanctioned countries, OFAC list) |
Wallet Screening
| Option | Description |
|---|---|
| Wallet risk screening | Screen wallets for risk indicators before allowing participation |
See Wallet Risk Screening for details on risk groups and configuration.
US Participants
| Option | Description |
|---|---|
| US accreditation checks | Verification that US participants meet accredited investor requirements (including option for on-chain net worth checks) |
Technical Options
Payment Configuration
| Option | Description |
|---|---|
| Payment tokens | Which tokens can be used for payment (e.g., USDC, USDT, or other ERC-20 tokens) |
| Blockchain | Which chain the sale runs on (any EVM-compatible chain, e.g., Ethereum, Base) |
Contact [email protected] for specific network availability.
Timing
| Option | Description |
|---|---|
| Sale start timestamp | When the commitment phase begins |
| Closing timestamp | When the commitment period automatically ends |
| Cancellation window | Duration of optional cancellation phase (for EU compliance) |
Lockup & Vesting
| Option | Description |
|---|---|
| Lockup preferences | Participant lockup preferences can be recorded with commitments, and may be required for certain user groups (e.g., for regulatory compliance in certain jurisdictions) |
Advanced
| Option | Description |
|---|---|
| Custom contracts | For unique requirements, Sonar can support custom smart contract implementations tailored to your specific needs |